It's been a few months since iOS 9 was officially unleashed on the public, and there's a good chance you're using it on your Apple gadgets right now. iOS 9 and it's later updates have brought hundreds of interesting changes, some you might not realize are in there.

We're going to take a look at three features iOS 9 has that you might not realize. From a big improvement to your battery to a smart assistant that is actually smart - these features are going to make you wonder what you ever did without them.

1. Say goodbye to terrible battery life

It's a known fact that iPhones traditionally have solid battery life. But with faster hardware and more powerful software, it's held even or slipped a bit in the last few phones. And no matter how much there is, it always seems like you need just a little more.

With that in mind, the lovely developers thought of ways to extend the battery without shorting on tons of other cool features. The first thing Apple did was rework iOS 9 to use the hardware, and therefore the battery, more efficiently.

Apple experts estimate that with this new system, you'll get over four hours of additional battery life. That's already great, but it's not all Apple had up its sleeve.

This time around, they included a neat addition to the software that's a Low Power Mode. What that means is when your battery is running a little low, you can turn this option on and it will disable battery-sucking features like animations, notification syncing and it will lower the screen's brightness.

To enable the Low Power Mode, go to your main Settings page and click Battery. There will be an option called "Low Power Mode" and you just need to toggle the switch on.

Now when you're running low but aren't near a wall socket, you can still eke a little more life out of your gadget. Of course, if you're on the go a lot and running out of juice, it helps to bring along a backup battery. Check out some of the great ones we sell in the Komando Shop like the PowerFlask that can double your battery life.